Quick mounting bolt for T-shaped groove

Abstract

The T-shaped groove comprises a first groove and a second groove which are communicated with each other, the width of the second groove is larger than that of the first groove, the quick installation bolt comprises a bolt head and a bolt column which are connected with each other, the diameter of the bolt column is smaller than that of the first groove, and the diameter of the bolt column is larger than that of the first groove. The width of the bolt head is the same as the diameter of the bolt column, and the length of the bolt head is matched with the width of the second groove. The quick mounting bolt further comprises a limiting block, and the limiting block is arranged on the bolt head and used for limiting the rotating direction of the bolt head. Through the arrangement of the limiting block, the side wall of the first groove is propped in the screwing rotation direction of the bolt column, so that the movement of the quick mounting bolt is avoided, and the connection effect of the quick mounting bolt is ensured; meanwhile, the diameter of the bolt column is smaller than the width of the first groove, the width of the bolt head is equal to the diameter of the bolt column, the bolt can be conveniently and rapidly installed to move to the needed position in the T-shaped groove, the installation difficulty is lowered, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fast installation of bolts, in particular to a fast installation bolt used for a T-shaped slot. Background Art

[0002] During the machining process, it is often necessary to clamp the product on the machine tool worktable. When clamping the blank to be processed, the T-nut is usually placed from one end of the machine tool worktable or the reserved hole on the machine tool worktable into the T-slot on the machine tool worktable, and then the T-nut is moved to the appropriate position to connect with the stud bolt, product, washer and pressure plate, and the workpiece to be processed is clamped and fixed by the lever principle.

[0003] However, when using, after the T-nut is placed in the T-slot on the machine tool workbench, it needs to slide along the T-slot on the machine tool workbench. During the movement, the T-nut will contact the inner wall of the T-slot, resulting in limited movement of the T-nut. The product placed on the workbench blocks the operator's view of the T-nut position, and the T-nut needs to be hooked with an auxiliary hook and moved to the appropriate position. It takes a long time for the staff to move the T-nut to the position to be processed, which prolongs the positioning time of the workpiece to be processed. In addition, it is troublesome to operate the tooling bolts during disassembly, and the auxiliary time is long, which takes up a certain amount of processing time and has low production efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0005] In view of this, the utility model provides a quick installation bolt for a T-slot, wherein the quick installation bolt, through the setting of a limit block, presses against the side wall of the first slot in the rotation direction of tightening the bolt column, thereby avoiding the movement of the quick installation bolt and ensuring the connection effect of the quick installation bolt; at the same time, the diameter of the bolt column is smaller than the width of the first slot, and the width of the bolt head is the same as the diameter of the bolt column, which can also facilitate the quick installation bolt to move to the desired position in the T-slot, reduce the difficulty of installation, and improve production efficiency.

[0006] Specifically, the following technical solutions are included:

[0007] The utility model provides a quick installation bolt for a T-shaped slot, wherein the T-shaped slot comprises a first slot and a second slot which are interconnected, wherein the width of the second slot is greater than the width of the first slot, and the quick installation bolt comprises: a bolt head and a bolt column which are connected to each other, wherein the diameter of the bolt column is less than the width of the first slot, the width of the bolt head is the same as the diameter of the bolt column, and the length of the bolt head matches the width of the second slot;

[0008] The quick-installation bolt further includes a limiting block, which is arranged on the bolt head and is configured to limit the rotation direction of the bolt head.

[0009] Optionally, the bolt head and the bolt column are fixedly connected.

[0010] Optionally, the limiting block at least includes a first side surface and a second side surface, the first side surface and the second side surface are respectively tangent to the bolt column, and the first side surface is flush with the side plane in the width direction of the bolt head.

[0011] Optionally, the limiting block is fixedly connected to the bolt column, and the limiting block further includes a third side surface, and the third side surface matches the outer surface of the bolt column.

[0012] Optionally, the first side surface and the second side surface intersect at a connection point, the quick-installation bolt includes a pair of the limiting blocks, and the center of the bolt column is located on the line connecting the pair of connection points.

[0013] Optionally, the bolt head includes a rectangular portion and a triangular portion, the triangular portions are located at both ends in the length direction of the rectangular portion, and the circumscribed circle of the bolt head matches the width of the second groove.

[0014] Optionally, the contact angle between the triangular portion and the second groove is the apex angle, a blind hole groove is provided at the apex angle, a damping member is provided in the blind hole groove, and at least part of the damping member protrudes from the apex angle of the triangular portion.

[0015] Optionally, the damping member is in the shape of a comma, the damping member includes a circular portion and an arc portion connected to each other, the circular portion is in clearance fit with the blind hole groove, and the arc portion is located outside the blind hole groove.

[0016] Optionally, a first cylindrical pin is provided on the side of the arc portion opposite to the circular portion, a second cylindrical pin is provided on the side of the triangular portion facing the first cylindrical pin, and the first cylindrical pin and the second cylindrical pin are connected by an elastic member.

[0017] Optionally, the bolt column includes a threaded section and a non-threaded section, and the limiting block corresponds to the position of the non-threaded section.

[0018] The quick-installation bolt for a T-shaped groove provided by an embodiment of the present utility model, wherein the quick-installation bolt includes a bolt head and a bolt column connected to each other. The bolt column is located in a first groove, and the bolt head is located in a second groove. The diameter of the bolt column is smaller than the width of the first groove, and the width of the bolt head is the same as the diameter of the bolt column. Such a setting can facilitate the quick-installation bolt to enter the second groove through the first groove, and also facilitate moving the quick-installation bolt to a desired position in the T-shaped groove, reducing the working difficulty of the staff, shortening the positioning time of the workpiece to be processed, and thus improving the processing efficiency of the workpiece. After reaching the desired position and rotating, since the length of the bolt head matches the width of the second groove, both ends in the length direction of the bolt head abut against the side walls of the second groove, realizing the positioning of the quick-installation bolt at the desired position. At the same time, through the setting of the limiting block, it abuts against the side wall of the first groove in the rotation direction of the bolt column when tightened, preventing the rotation of the quick-installation bolt, and enabling the connection of the quick-installation bolt to be achieved faster.

[0019] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specifically gives the specific implementation manners of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0021] Figure 1 Schematic diagram of a quick-installation bolt for a T-shaped groove according to an embodiment of the present utility model;

[0022] Figure 2a Schematic diagram of the quick-installation bolt entering the T-shaped groove according to an embodiment of the present utility model;

[0023] Figure 2b For Figure 2a Schematic diagram of A-A of the illustrated embodiment;

[0024] Figure 3 Schematic diagram of the quick-installation bolt positioning with the T-shaped groove according to an embodiment of the present utility model;

[0025] Figure 4a Schematic diagram of a quick-installation bolt according to another embodiment of the present utility model;

[0026] Figure 4bSchematic diagram of a quick - installation bolt without a damping member according to another embodiment of the present utility model;

[0027] Figure 5 Schematic diagram of a bolt head according to another embodiment of the present utility model;

[0028] Figure 6 Top view of a bolt head according to another embodiment of the present utility model;

[0029] Figure 7 Schematic diagram of a damping member according to another embodiment of the present utility model;

[0030] Figure 8 Schematic diagram of the connection of a first cylindrical pin and a second cylindrical pin according to another embodiment of the present utility model.

[0031] Among them, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names in the figure is as follows:

[0032] 100 quick - installation bolt, 110 bolt head, 111 rectangular part, 112 triangular part, 113 blind - hole groove, 114 second cylindrical pin, 120 bolt column, 121 threaded section, 122 non - threaded section, 130 limiting block, 131 first side, 132 second side, 133 third side, 140 damping member, 141 circular part, 142 arc part, 143 first cylindrical pin, 150 elastic member, 200 T - shaped groove, 210 first groove, 220 second groove. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] Before further detailed description of the implementation manners of the present utility model, the orientation terms involved in the embodiments of the present utility model, such as "upper part", "lower part", "side part", do not have the meaning of limiting the protection scope of the present utility model.

[0035] To make the technical solutions and advantages of the present utility model clearer, the implementation manners of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0036] Figure 1 Schematic diagram of a quick - installation bolt for a T - shaped groove according to an embodiment of the present utility model; Figure 2aA schematic diagram of a quick installation bolt entering a T-slot according to an embodiment of the utility model; Figure 2b for Figure 2a A schematic diagram of AA of the illustrated embodiment; Figure 3 The figure is a schematic diagram of positioning a quick installation bolt and a T-slot according to an embodiment of the utility model.

[0037] like Figures 1 to 3 As shown, an embodiment of the utility model provides a quick installation bolt 100 for a T-slot, wherein the T-slot 200 comprises a first slot 210 and a second slot 220 which are interconnected, wherein the width of the second slot 220 is greater than the width of the first slot 210, and the quick installation bolt 100 comprises: a bolt head 110 and a bolt column 120 which are interconnected, wherein the diameter of the bolt column 120 is smaller than the width of the first slot 210, the width of the bolt head 110 is the same as the diameter of the bolt column 120, and the length of the bolt head 110 matches the width of the second slot 220;

[0038] The quick installation bolt 100 further includes a limit block 130 . The limit block 130 is disposed on the bolt head 110 . The limit block 130 is disposed to limit the rotation direction of the bolt head 110 .

[0039] The quick installation bolt 100 includes a bolt head 110 and a bolt column 120 connected to each other. The bolt column 120 is located in the first groove 210, and the bolt head 110 is located in the second groove 220. The diameter of the bolt column 120 is smaller than the width of the first groove 210, and the width of the bolt head 110 is the same as the diameter of the bolt column 120. Such a setting can facilitate the quick installation bolt 100 to pass through the first groove 210 and enter the second groove 220. Figure 2a and Figure 2b As shown, it is also convenient to move the quick installation bolt 100 to the desired position in the T-slot 200, which reduces the difficulty of the workpiece, shortens the positioning time of the workpiece, and thus improves the processing efficiency of the workpiece; after reaching the desired position, rotate, such as Figure 3 As shown, since the length of the bolt head 110 matches the width of the second groove 220, the two ends of the bolt head 110 in the length direction are in contact with the side walls of the second groove 220, thereby realizing the positioning of the quick-installation bolt 100 at the desired position; at the same time, through the setting of the limit block 130, the side wall of the first groove 110 is pressed against in the rotation direction of tightening the bolt column 120, thereby avoiding the rotation of the quick-installation bolt 100 and realizing the connection of the quick-installation bolt 100 more quickly.

[0040] Specifically, since the diameter of the bolt column 120 is smaller than the width of the first groove 210, and the width of the bolt head 110 is the same as the diameter of the bolt column 120. As shown in Figure 2, first insert the quick-installation bolt 100 into the T-shaped groove 200 along the position of the first groove 210, and move the quick-installation bolt 100 to the required position. After the bolt head 110 contacts the bottom of the T-shaped groove 200, as Figure 3 shown, rotate the quick-installation bolt 100 so that the length of the bolt head 110 abuts against the width of the second groove 220. Through the cooperation of the length of the bolt head 110 and the width of the second groove 220, the quick-installation bolt 100 is positioned at the required position and no longer moves around. To prevent the tightening force of the threaded connection from being too large, causing the bolt head 110 to continue to rotate in the second groove 220, a limit block 130 is provided on the bolt head 110. After the length of the bolt head 110 matches the width of the second groove 220, the limit block 130 can abut against the side wall of the first groove 210, and the rotation direction of the limit block 130 when it abuts against the first groove 210 is the same as the threaded tightening direction of the bolt column 120. In this way, when the threaded fixed connection is made, no matter how much force is applied, the limit block 130 always abuts against the side wall of the first groove 210, preventing the quick-installation bolt 100 from rotating, which can reduce the time for the staff to find the installation position, shorten the positioning time of the workpiece, and thus improve the processing efficiency of the workpiece.

[0041] It can be understood that when it is necessary to remove the quick-installation bolt 100, rotate the quick-installation bolt 100 in the reverse direction, that is, make the limit block 130 rotate away from the side wall of the first groove 210, such as Figure 3 rotate counterclockwise as shown in the figure, so that the width direction of the bolt head 110 matches the width of the first groove 210. Since the width of the bolt head 110 is equal to the diameter of the bolt column 120, and the diameter of the bolt column 120 is smaller than the width of the first groove 210, therefore, the quick-installation bolt 100 can be smoothly removed from the T-shaped groove 200 and stored centrally for convenient use next time. Or, after moving the quick-installation bolt 100 to other required positions, reposition and limit it before fixing the next workpiece. The method is as above and will not be elaborated here.

[0042] In a feasible implementation manner, the bolt head 110 and the bolt column 120 are fixedly connected.

[0043] Among them, usually, the bolt head 110 and the bolt column 120 are fixedly connected, which can effectively improve the strength of the quick-installation bolt 100 and avoid the fracture of the quick-installation bolt 100 caused by excessive rotational force of the threaded connection when the bolt column 120 abuts against the first groove 210. The reliability of the quick-installation bolt 100 can be effectively improved through the fixed connection between the bolt head 110 and the bolt column 120.

[0044] Specifically, the bolt head 110 and the bolt column 120 can be integrally formed. Alternatively, the bolt head 110 and the bolt column 120 can be fixedly connected by welding. By separately processing the bolt head 110 and the bolt column 120 in this way, the processing difficulty can also be reduced.

[0045] It should be noted that in this embodiment, the bolt head 110 and the bolt column 120 are welded and connected by flash welding. Flash welding is a resistance welding method in which when an electric current passes through the contact surfaces of two butt-jointed workpieces, the resistance of its tiny contact points and the arc on its contact surface generate heat to heat the butt surfaces. After an appropriate time, pressure is applied to the butt joint to firmly bond the entire area of the two butt surfaces (the bolt head 110 and the bolt column 120) together. After clamping the bolt head 110 and the bolt column 120 in the clamp (electrode) connected to the secondary of the welding transformer, when one workpiece slowly moves towards the other workpiece, since the end faces of the workpieces are always "concave and convex", the end faces of the two workpieces always start to contact from one point or several points. After contact, upsetting pressure is applied to squeeze out all the molten metal on the joint surface and firmly forge the two workpieces together. Connecting the bolt head 110 and the bolt column 120 by flash welding can reduce the processing process and improve the material utilization rate at the same time.

[0046] It can be understood that the limit block 130 is integrally formed with the quick-installation bolt 100. Among them, the limit block 130 can be integrally formed with the bolt column 120 first and then welded to the bolt head 110, or the limit block 130 can be integrally formed with the bolt head 110 first and then welded to the bolt column 120. The bolt head 110, the bolt column 120 and the limit block 130 are made of the same material, which can effectively save the raw materials of the quick-installation bolt 100 and make the bolt head 110, the bolt column 120 and the limit block 130 easy to process.

[0047] In a feasible implementation manner, the limit block 130 at least includes a first side surface 131 and a second side surface 132. The first side surface 131 and the second side surface 132 are respectively tangent to the bolt column 120, and the first side surface 131 is flush with the side plane in the width direction of the bolt head 110.

[0048] It should be noted that generally, in order to ensure that the limiting block 130 can enter the T-shaped groove 200 along with the quick-installation bolt 100 and can make the limiting block 130 abut against the first groove 210 after rotation, the first side surface 131 and the second side surface 132 need to be perpendicular to each other. The first side surface 131 is flush with the side plane in the width direction of the bolt head 110. Such a setting is more convenient for machining, making the shape of the quick-installation bolt 100 regular. When the first side surface 131 and the second side surface 132 are perpendicular to each other and rotated by 90°, the second side surface 132 can abut against the side wall of the first groove 210, and the length direction of the bolt head 110 and the width of the second groove 220 cooperate with each other to realize the positioning of the quick-installation bolt 100 by the side wall of the T-shaped groove 200, improving the accuracy and reliability of the positioning of the quick-installation bolt 100, shortening the positioning time of the workpiece to be machined, and improving the production efficiency of the workpiece to be machined.

[0049] In a feasible implementation manner, the limiting block 130 is fixedly connected to the bolt column 120, and the limiting block 130 further includes a third side surface 133, and the third side surface 133 matches the outer surface of the bolt column 120.

[0050] Among them, the limiting block 130 is fixedly connected to the bolt column 120. At this time, the projection of the limiting block 130 on the bolt head 110 is a right triangle, and the non-right-angled side is arc-shaped, and the arc matches the arc surface of the bolt column 120. Such a setting can increase the strength of both the limiting block 130 and the bolt column 120 at the same time, can resist the tightening force during the thread tightening process, extend the service life of the limiting block 130 and the bolt column 120, and further extend the service life of the quick-installation bolt 100 and the reliability of the limiting and fixing work.

[0051] It can be understood that the limiting block 130 and the bolt column 120 are integrally formed, or the limiting block 130 and the bolt column 120 are welded into one body by flash welding, effectively improving the strength of the bolt column 120 and the limiting block 130.

[0052] In a feasible implementation manner, the first side surface 131 and the second side surface 132 intersect at a connection point. The quick-installation bolt 100 includes a pair of limiting blocks 130, and the center of the bolt column 120 is located on the line connecting the pair of connection points.

[0053] Among them, the quick-installation bolt 100 includes a pair of limiting blocks 130, and the connecting line of the connection points of the pair of limiting blocks 130 passes through the center of the bolt column 120. Such a setting can, on the one hand, improve the balance of the abutment of the limiting block 130 against the first groove 210 and enhance the aesthetic appearance of the quick-installation bolt 100. On the other hand, by the abutment of the two limiting blocks 130 against the first groove 210, the force-bearing situation of the limiting block 130 can be dispersed, thereby increasing the service life of the limiting block 130, that is, increasing the service life of the quick-installation bolt 100.

[0054] Figure 5 Schematic diagram of a bolt head according to an embodiment of the present invention; Figure 6 Top view of a bolt head according to an embodiment of the present invention.

[0055] In a feasible implementation manner, as Figure 5 and Figure 6 shown, the bolt head 110 includes: a rectangular portion 111 and a triangular portion 112. The triangular portion 112 is located at both ends of the rectangular portion 111 in the length direction. The circumcircle of the bolt head 110 matches the width of the second groove 220.

[0056] Among them, the rectangular portion 111 and the triangular portion 112 are integrally formed to improve the strength of the bolt head 110. At the same time, the triangular portion 112 is located at both ends of the rectangular portion 111 in the length direction. In this way, when the length direction of the bolt head 110 matches the width of the second groove 220, the vertices of the triangular portion 112 can abut against the two side walls in the width direction of the second groove 220.

[0057] It can be understood that other shapes can be set at both ends of the rectangular portion 111, which can be trapezoidal, rectangular or other polygons. As long as one side is the same length as the width side of the rectangular portion 111, the number of the remaining sides can be any value, as long as the diameter of the circumcircle of the bolt head 110 can match the width of the second groove 220, and at least one vertex at both ends of the bolt head 110 can abut against the side wall of the second groove 220. In this embodiment, a triangle is used, so that both ends of the rectangular portion 111 are triangles. Further, it can be an isosceles triangle, which is more convenient for processing, reduces the processing difficulty, shortens the processing time of the bolt head 110, reduces the processing cost of the quick-installation bolt 100, and improves the economy.

[0058] Figure 4a Schematic diagram of a quick-installation bolt according to another embodiment of the present invention; Figure 4b Schematic diagram of a quick-installation bolt without a damping member according to another embodiment of the present invention.

[0059] In a feasible implementation manner, as Figure 4a and Figure 4bAs shown, the contact angle between the triangular portion 112 and the second groove 220 is the apex angle. A blind hole groove 113 is provided at the apex angle. A damping member 140 is provided in the blind hole groove 113, and at least a part of the damping member 140 protrudes from the apex angle of the triangular portion 112.

[0060] Among them, directly abutting against the side wall of the second groove 220 through the triangular portion 112 requires a relatively high machining accuracy for the bolt head 110. Therefore, a blind hole groove 113 can be provided, and a damping member 140 is provided in the blind hole groove 113 to effectively reduce the machining accuracy of the bolt head 110. The blind hole groove 113 does not penetrate the apex angle of the triangular portion 112, and the opening of the blind hole groove 113 faces away from the rectangular portion 111. The opening of the blind hole groove 113 is smaller than the size of the damping member 140, so that in the height direction of the bolt head 110 and the length direction of the bolt head 110, the damping member 140 is limited, preventing the damping member 140 from falling off from the blind hole groove 113 during the working process of the bolt head 110.

[0061] It should be noted that through the setting of the damping member 140, at least a part of the damping member 140 protrudes from the blind hole groove 113. By abutting against the side wall in the width direction of the second groove 220 through the protruding part of the damping member 140, the positioning and limiting of the quick-processing bolt 100 can be realized on the premise of reducing the machining accuracy of the bolt head 110.

[0062] Figure 7 It is a schematic diagram of a damping member according to an embodiment of the present invention.

[0063] In a feasible implementation manner, as Figure 7 shown, the damping member 140 is in a comma shape. The damping member 140 includes a circular portion 141 and an arc portion 142 that are connected to each other. The circular portion 141 is in clearance fit with the blind hole groove 113, and the arc portion 142 is located outside the blind hole groove 113.

[0064] Among them, the damping member 140 includes a circular portion 141 and an arc portion 142. The circular portion 141 is in clearance fit with the blind hole groove 113, and the opening of the blind hole groove 113 is smaller than the diameter of the circular portion 141. The arc portion 142 extends out of the blind hole groove 113 from the notch. During the rotation of the bolt head 110, the arc portion 142 abuts against the side wall in the width direction of the second groove 220.

[0065] It can be understood that the blind hole groove 113 is a non-through opening groove. The comma-shaped damping member 140 can be inserted from the direction of the bolt post 120 towards the direction of the bolt head 110. The lower end of the blind hole groove 113 is closed, so that the damping member 140 cannot fall from below. At the same time, the comma-shaped damping member 40 has a clearance fit with the blind hole groove 113, which is convenient for the installation and removal of the damping member 140. Since the opening of the blind hole groove 113 is smaller than the size of the circular portion 141 of the comma-shaped damping member 140, the comma-shaped damping member 140 cannot be removed from the side either and can only be removed from above the blind hole groove 113. Above the blind hole groove 113 refers to the side facing the bolt post 120.

[0066] It should be noted that the comma-shaped damping member 140 serves to supplement the length of the bolt head 110. At the junction where the damping member 140 contacts the side wall of the second groove 220 of the T-shaped groove 200, on the one hand, it can reduce the machining accuracy of the bolt head 110, and on the other hand, it can avoid the wear of the bolt head 110 and improve the service life of the quick-installation bolt 100.

[0067] In this embodiment, the material of the component 140 is nylon. Nylon has high strength and has good wear resistance, tear resistance and fatigue resistance during the rotation of the damping member 140 and the side wall of the second groove 220, which improves the service life of the damping member 140. At the same time, the nylon material has good elasticity. By squeezing the damping member 140 (arc portion 142) protruding from the blind hole groove 113 by the side wall of the second groove 220, the reliability of the contact between the damping member 40 and the side wall of the second groove 220 can be improved, and further the reliability of the positioning and limiting of the quick-installation bolt 100 can be ensured. Furthermore, the nylon material is TR90 and also has a good memory function, and can automatically return to its original state after being bent by an external force, which can further improve the service life of the damping member 140, extend the replacement time of the damping member 140, and improve the economy.

[0068] Figure 8 It is a connection schematic diagram of the first cylindrical pin and the second cylindrical pin according to an embodiment of the present invention.

[0069] In a feasible implementation manner, as Figure 7 shown, a first cylindrical pin 143 is provided on the side of the arc portion 142 opposite to the circular portion 141, and a second cylindrical pin 114 is provided on the side of the triangular portion 112 facing the first cylindrical pin 143. The first cylindrical pin 143 and the second cylindrical pin 114 are connected by an elastic member 150.

[0070] Among them, a first cylindrical pin 143 is provided on the side of the arc portion 142 facing the circular portion 141, and the first cylindrical pin 143 is opposite to one side of the triangular portion 112. A second cylindrical pin 114 is provided on this side. The first cylindrical pin 143 and the second cylindrical pin 114 are connected by an elastic member 150. The elastic member 150 transmits elastic force to the damper 140, applying a resistance to the damper 140. After finding the positioning position, when the quick-installation bolt 100 is manually rotated, the damper piece 140 slowly rotates under the action of the elastic member 150, and the elastic member 150 also plays a role of rotational transition; it can also prevent the damper 40 from directly rotating and contacting one side of the triangular portion 112 when the side wall of the second groove 220 touches the damper 140. The elastic member 150 plays a supporting role to ensure the reliability of the contact between the arc portion 142 of the damper 140 and the side wall of the second groove 220, thereby ensuring the reliability of the positioning of the quick-installation bolt 100.

[0071] It should be noted that when necessary, the elastic member 150 is a spring, and the spring is a compression spring. When a force is applied to the damper 140 by the side wall of the second groove 220, this force is applied to the compression spring, and the reaction force of the compression spring is applied to the damper 140 to play a role in supporting the damper 40 and ensuring the reliability of the contact between the damper 140 and the side wall of the second groove 220.

[0072] In this embodiment, the first cylindrical pin 143 and the arc portion 142 are detachably connected by threads. Similarly, the second cylindrical pin 114 and the bolt head 110 are also detachably connected by threads, which is convenient for replacing the elastic member 150. Both ends of the elastic member 150 can be welded to the first cylindrical pin 143 and the second cylindrical pin 114 respectively.

[0073] It can be understood that multiple first cylindrical pins 143 and second cylindrical pins 114 can be provided on the quick-installation bolt 100, and each first cylindrical pin 143 corresponds to a second cylindrical pin 114. That is to say, the connection line between the first cylindrical pin 143 and the second cylindrical pin 114 is parallel to the bottom surface of the T-shaped groove 200. In this embodiment, two first cylindrical pins 143 and two second cylindrical pins 114 are adopted.

[0074] In a feasible implementation manner, the bolt column 120 includes a threaded section 121 and a non-threaded section 122, and the limiting block 130 corresponds to the position of the non-threaded section 122.

[0075] When the limiting block 130 is fixedly connected to the bolt column 120, the limiting block 130 is located on the non-threaded section 122 of the bolt column 120. On the one hand, it can ensure the tightness of the fit between the limiting block 130 and the bolt column 120, thereby improving the strength of the quick-installation bolt 100. On the other hand, it can also ensure the connection length of the threaded section of the bolt column 120, thereby ensuring the reliability of the quick-installation bolt 100 for fixing the workpiece.

[0076] Specifically, after the quick-installation bolt 100 rotates 90° in the T-shaped groove 200, the two ends of the length of the bolt head 110 abut against the second groove 220, and the limiting block 130 abuts against the side wall of the first groove 210 to position the quick-installation bolt 100. That is, the limiting block 130 can prevent the rotation of the quick-installation bolt 100. Therefore, the maximum rotation area of the bolt head 110, that is, the diameter of the circumscribed circle of the bolt head 110, matches the width of the second groove 220. When the bolt head 110 rotates 90°, the bolt is tightened, and the contact area between the bolt head 110 of the quick-installation bolt 100 and the second groove 220 is the largest, making the force on the quick-installation bolt 100 more uniform, thereby avoiding the fracture of the quick-installation bolt 100 and improving the service life and working reliability of the quick-installation bolt 100.

[0077] In the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0078] Those skilled in the art will readily think of other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and embodiments are only regarded as exemplary.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-install bolt for a T-slot, the T-slot comprising a first slot and a second slot connected to each other, the width of the second slot being greater than the width of the first slot, characterized in that: The quick installation bolt comprises: a bolt head and a bolt column connected to each other, the diameter of the bolt column is smaller than the width of the first slot, the width of the bolt head is the same as the diameter of the bolt column, and the length of the bolt head matches the width of the second slot; The quick installation bolt further comprises a limit block, which is arranged on the bolt head and is arranged to limit the rotation direction of the bolt head.

2. The quick installation bolt for T-slot according to claim 1, characterized in that: The bolt head and the bolt column are fixedly connected.

3. The quick installation bolt for T-slot according to claim 1, characterized in that: The limiting block at least includes a first side surface and a second side surface, wherein the first side surface and the second side surface are respectively tangent to the bolt column, and the first side surface is flush with a side plane in a width direction of the bolt head.

4. The quick installation bolt for T-slot according to claim 3, characterized in that: The limiting block is fixedly connected to the bolt column, and the limiting block further includes a third side surface, and the third side surface matches the outer surface of the bolt column.

5. The quick installation bolt for T-slot according to claim 3, characterized in that: The first side surface and the second side surface intersect at a connection point, the quick installation bolt comprises a pair of limit blocks, and the center of the bolt column is located on a line connecting the pair of connection points.

6. The quick installation bolt for T-slot according to claim 1, characterized in that: The bolt head includes a rectangular portion and a triangular portion, wherein the triangular portions are located at two ends of the rectangular portion in a length direction, and a circumscribed circle of the bolt head matches a width of the second groove.

7. The quick installation bolt for T-slot according to claim 6, characterized in that: The contact angle between the triangular portion and the second groove is a vertex angle, a blind hole groove is provided at the vertex angle, a damping member is provided in the blind hole groove, and at least part of the damping member protrudes from the vertex angle of the triangular portion.

8. The quick installation bolt for T-slot according to claim 7, characterized in that: The damping member is comma-shaped and comprises a circular portion and an arc-shaped portion which are connected to each other. The circular portion is clearance-matched with the blind hole groove, and the arc-shaped portion is located outside the blind hole groove.

9. The quick installation bolt for T-slot according to claim 8, characterized in that: A first cylindrical pin is disposed on a side of the arc portion opposite to the circular portion, a second cylindrical pin is disposed on a side of the triangular portion facing the first cylindrical pin, and the first cylindrical pin and the second cylindrical pin are connected via an elastic member.

10. The quick installation bolt for T-slot according to any one of claims 1 to 9, characterized in that: The bolt column includes a threaded section and a non-threaded section, and the limit block corresponds to the position of the non-threaded section.

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